Performing a Parallel Save Appending to Tape When Append to Media is *NO
Parallel Save appending to tape when Append to Media is *NO occurs when the first entry in the control group cannot be saved in true parallel format.
In V5R4 and above, BRMS allows users to create a control group that will do parallel saves and allow entry of items that cannot be saved in parallel. For example, *SAVSYS, *SAVSECDTA, *SAVCFG, and *ALLDLO cannot be saved in parallel. However, you can list these items in a control group processing a parallel save.
In a situation where the control group attribute 'Append to Media' is set to *NO and the first item in the control group cannot be saved in parallel (for example, *SAVSYS, *SAVSECDTA, *SAVCFG, or *ALLDLO) when the control group saves an entry that can be saved in parallel, BRMS looks for a volume that can be appended to even though 'Append to Media' *NO is specified. This is a current restriction in BRMS.
For example, if the following control group specified 'Append to Media' *NO and a parallel backup was specified, when the *ALLUSR portion of the control group is processed, BRMS will attempt to append this save to an active volume:
Back up
Seq | Items |
10 | *EXIT |
20 | *SAVSECDTA |
30 | *SAVCFG |
40 | *ALLUSR |
50 | *EXIT |
To prevent an active volume from being appended to use one of the following circumventions:
Circumvention Example 1: The first save entry in the control group must be a parallel item (for example, *ALLUSR, *IBM, *LINK).
Back up
Seq | Items |
10 | *EXIT |
20 | *ALLUSR |
30 | *LINK |
40 | *SAVSECDTA |
50 | *SAVCFG |
60 | *EXIT |
Circumvention Example 2: Keep the items not saved in parallel at the top (such as *SAVSECDTA) in the control group. Then, load a volume between the nonparallel items and the parallel items. You can use the special operation *LOAD to begin a new tape.
Back up
Seq | Items |
10 | *EXIT |
20 | *SAVSECDTA |
30 | *SAVCFG |
40 | *LOAD |
50 | *ALLUSR |
60 | *LINK |
70 | *EXIT |
Circumvention Example 3: Create two control groups. One control group should save only parallel items, and the second control group should save the items that cannot be saved in parallel.
For Control Group 1:
Backup
Seq | Items |
10 | *EXIT |
20 | *SAVSECDTA |
30 | *SAVCFG |
40 | *EXIT |
For Control Group 2:
Backup
Seq | Items |
10 | *EXIT |
20 | *ALLUSR |
30 | *EXIT |
This is a copy of the IBM Support document Parallel Save Appending to Tape When Append to Media is *NO located at IBM Support under Historical Number 463788647
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